Low phone signal / reception

[shahan]

When i have the data setting switched onto the 4G in network & Internet settings at home and even though im not using data but instead im using WiFi at home the phones signal is very low, only one bar or two. So even though im using WiFi at home only, i have to go to the settings and change it to 3G and then i get all 4 bars. If i leave it on 4G data setting many people complain there calls don't come through because i don't have full reception 

When i go outside i have to switch it on to 4G in network & Internet  settings and everything is as normal. The phone is a Xperia XA2 Ultra 

Why is this? 

[Effie]

Hey @shahan I hope you're doing well. There are multiple reasons why this could be happening and without running checks on the network, SIM, device and your account we won't be able to pinpoint the exact cause and resolve it. So we can get everything checked out for you, please drop the Social Media Team a message here 

[Cynric]

@shahan I think you have something in the construction of your home that weakens 4G. In radio signals as frequency increases so does attenuation due to structural materials.